:: (a -> b) -> [a] -> [b] is:exact -package:stm-containers -package:adjunctions -package:imports -package:comonad -package:base-compat-batteries -package:integration -package:appar -package:amazonka-core -package:base-prelude -package:Cabal-syntax -package:base-compat package:vector
O(n) Map a function over a vector.